No matter the data has been backed up or not, Contact Recovery for iPhone works perfectly with all iOS devices including iPhone 3GS/4/4S/5, and supports all versions of iOS and Mac OS X. Simply check the single box "Only display deleted files" on the bottom of the scan results and click "Recovery", it take only a few seconds to bring iOS files back from the dead. Contact Recovery for iPhone provides a convenient way of previewing your lost files before you actually recover them. This gives you the opportunity to choose only those files you want to need to restore. Recover the files you chose to at a time and after all the work have been done, you can save the files to your computer.